Redox Paths in Heated TiO–Fe2O3 and TiO-Fe3O4 Mixtures – Implication of TiO as a Novel Reducing Compound.

0477927 - ÚCHP 2018 RIV US eng J - Journal Article
Pola, Josef - Bakardjieva, Snejana - Bezdička, Petr - Jakubec, Ivo - Pokorná, Dana
Redox Paths in Heated TiO–Fe2O3 and TiO-Fe3O4 Mixtures – Implication of TiO as a Novel Reducing Compound.
Journal of Advanced Microscopy Research. Roč. 12, č. 2 (2017), s. 104-109. ISSN 2156-7573
R&D Projects: GA TA ČR(CZ) TA04020860
Institutional support: RVO:67985858 ; RVO:61388980
Keywords : redox solid state chemistry * titanium monoxide * ferric oxide
OECD category: Physical chemistry; Inorganic and nuclear chemistry (UACH-T)

Isothermal heating of the equimolar mixture of titanium monoxide (TiO) and ferric oxide (Fe2O3) or magnetite (Fe3O4) in a vacuum at 1000 oC results in solid state formation of Fe, FeO, Fe3O4, Ti4O7 and TiO2, FeTiO3 and Fe2TiO4, which is consonant with simultaneously occurring reductive Fe2O3 → Fe3O4 → FeO → Fe and oxidative TiO → Ti2O3 → TinO2n-1 → TiO2 paths and subsequent bonding of FeO and TiO2 oxides. The reducing action of TiO towards iron oxides suggests that TiO may also reduce other solid oxides and lead to formation of novel titania-containing materials.
Permanent Link: http://hdl.handle.net/11104/0275141